Sins of a Solar Empire is successful in every aspect. As a space game, it has beautiful graphics and all the space "junk" we expect. As an RTS is surpassed every expectation in the sense that its one of the most balanced RTS released, the AI is amazing, works on strategy rather than the zerg, and it was able to incorporate the 4X strategy found only in turn based games until now. In my opinion this is must have game.